May Chhun, PA-C
NPI 1912638859ActiveIndividual· Physician Assistant· Temecula, CA
Physician Assistant (PA-C) with Advanced Dermatology and Skin Cancer Specialists, practicing in Temecula, California. Their prescriptions cost Medicare Part D more than their services did: $492,248 for 433 claims, against $166,892 paid for services in 2024. Janssen Biotech, Inc. was the largest of 19 companies reporting payments in 2025, $1,816 in all, mostly food and beverage.
Overview
| NPI | 1912638859 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jun 21, 2022 |
| Last updated in NPPES | Oct 13, 2025 |
| Certified by provider | Oct 13, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA61274 | CA |
| Dermatology | 207N00000X | PA61274 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 555 |
|---|---|
| Services billed | 4,996 across 40 procedure codes |
| Paid by Medicare | $166,892 |
Part D prescriptions in 2024
| Prescriptions (claims) | 433 · 469 30-day fills |
|---|---|
| Patients | 191 |
| Total drug cost | $492,248 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Advanced Dermatology and Skin Cancer SpecialistsRiverside, CA · 21 clinicians
Industry payments (Open Payments)
- 2025$1,816 · 94 payments from 19 companies
- 2024$2,512 · 137 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $412.45 | 20 |
| Abbvie Inc. | $358.46 | 24 |
| Galderma Laboratories, L.P. | $157.72 | 4 |
| Arcutis Biotherapeutics, Inc. | $145.79 | 14 |
| Takeda Pharmaceuticals U.S.A., Inc. | $105.11 | 1 |
What the 2025 payments were for
- Food and Beverage$1,747 · 93 payments
- Education$68.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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